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17011. Visual Double Stars in Hipparcos
ID:
ivo://CDS.VizieR/I/260
Title:
Visual Double Stars in Hipparcos
Short Name:
I/260
Date:
21 Oct 2021
Publisher:
CDS
Description:
This catalogue is the only complete list of all known double and multiple systems (18644) of which at least one component was identified in the Hipparcos final catalog in July 1997 (Cat. <I/239>), including the 2994 systems newly discovered by the satellite, as well as the 155 new astrometric orbital pairs also discovered by the satellite (Dommanget, 2000Obs...120..202D), and also the 38 new astrometric binaries components of known systems. It may be considered as a subset of the CCDM as existing in 1998 of which a first edition appeared in 1994 (Cat. <I/211>), and of which a second edition containing more than 45,000 systems is being prepared for publication. Consequently, the format of this list is that of the CCDM for which all information may be found in the introduction of its 1994 published version (as file I/211/ccdm.doc) The format of this catalogue is the same as the CCDM (Cat. <I/211>)
17012. 9 visual double stars orbital elements
ID:
ivo://CDS.VizieR/J/A+AS/132/253
Title:
9 visual double stars orbital elements
Short Name:
J/A+AS/132/253
Date:
21 Oct 2021
Publisher:
CDS
Description:
Orbital elements and ephemerides for 9 visual double stars are given.
17013. Visual multiples. VIII.
ID:
ivo://CDS.VizieR/J/ApJS/59/95
Title:
Visual multiples. VIII.
Short Name:
J/ApJS/59/95
Date:
21 Oct 2021
Publisher:
CDS
Description:
A total of 1000 new classifications are given for stars brighter than B=8.0mag in the Aitken double star catalog. The classifications supplement 865 classifications obtained in 1981 and 1984. Among the newly discovered stars are 12 new Ap stars, eight Lambda Bootis stars, one Ba II star, and 60 Am stars. A detailed list of the new classifications is given.
17014. Visual search for galaxies in the Galactic Plane
ID:
ivo://CDS.VizieR/J/MNRAS/277/125
Title:
Visual search for galaxies in the Galactic Plane
Short Name:
J/MNRAS/277/125
Date:
21 Oct 2021
Publisher:
CDS
Description:
We have visually examined 12 Palomar red plates for galaxies at low Galactic latitude b, where the Supergalactic Plane (SGP) is crossed by the Galactic Plane (GP), at Galactic longitude l~135deg. The catalogue consists of 2575 galaxy candidates, of which 462 have major axis diameter d>=0.8arcmin (uncorrected for extinction). Galaxy candidates can be identified down to |b|~0deg. One of our galaxy candidates (J24=Dwingeloo 1) has recently been discovered independently at 21cm by Kraan-Korteweg et al. as a nearby galaxy. Comparisons with structures seen in the IRAs and UGC catalogues are made. We compare the success rate of identifying galaxies using the IRAS Point Source Catalogue under different colour selection criteria. The criteria that require both the 60- and 100-{mu}m fluxes to be of high quality have the highest probability of selecting a galaxy (with d>=0.6arcmin), but at the expense of selecting a smaller number of galaxies in total.
17015. V,i,TiOr,CN photometry of And-II AGB stars
ID:
ivo://CDS.VizieR/J/A+A/427/613
Title:
V,i,TiOr,CN photometry of And-II AGB stars
Short Name:
J/A+A/427/613
Date:
21 Oct 2021
Publisher:
CDS
Description:
Our photometric survey of Local Group galaxies, using a four filter technique based on the method of Wing (1971, Proc. Conf. Late-Type Stars, ed. G.W. Lockwood and H.M. Dyck, KPNO Contribution 554, 145) allows the identification and subsequent characterization of their late-type stellar content. Two narrow band filters centred on molecular bands of TiO and CN allow us to distinguish between AGB stars of different chemistries [M-type (O-rich) and C-type (C-rich)]. The faint dwarf spheroidal galaxy And II, a member of the M 31 subgroup, was surveyed. From photometry in V and i as well as in the narrow band filters TiO and CN we were able to identify 7 new AGB carbon stars, to derive their mean absolute <Mi> and bolometric magnitude Mbol, their luminosity function, and their spatial distribution. We are unable to establish the true C/M ratio because the few M stars of And II are overwhelmed by foreground Galactic M st
17016. VJHK and SDSS photometry of DA white dwarfs
ID:
ivo://CDS.VizieR/J/AJ/132/1221
Title:
VJHK and SDSS photometry of DA white dwarfs
Short Name:
J/AJ/132/1221
Date:
21 Oct 2021
Publisher:
CDS
Description:
We have calibrated four major ground-based photometric systems with respect to the Hubble Space Telescope (HST) absolute flux scale, which is defined by Vega and four fundamental DA white dwarfs. These photometric systems include the Johnson-Kron-Cousins UBVRI, the Stroemgren uvby filters, the Two Micron All Sky Survey JHKs, and the Sloan Digital Sky Survey ugriz filters. Synthetic magnitudes are calculated from model white dwarf spectra folded through the published filter response functions; these magnitudes in turn are absolutely calibrated with respect to the HST flux scale. Effective zero-magnitude fluxes and zero-point offsets of each system are determined. In order to verify the external observational consistency, as well as to demonstrate the applicability of these definitions, the synthetic magnitudes are compared with the respective observed magnitudes of larger sets of DA white dwarfs that have well-determined effective temperatures and surface gravities and span a wide range in both of these parameters.
17017. VLA A370 Cluster of Galaxies 1.4-GHz Source Catalog
ID:
ivo://nasa.heasarc/vla3701p4
Title:
VLA A370 Cluster of Galaxies 1.4-GHz Source Catalog
Short Name:
VLA3701P4
Date:
01 Nov 2024
Publisher:
NASA/GSFC HEASARC
Description:
This table contains the 1.4-GHz source catalog for the field of the cluster of galaxies A370 as observed with the Very Large Array (VLA). This is one of the deepest radio images of a cluster field ever taken. The image covers an area of 40&#39; x 40&#39; with a synthesized beam of ~1.7&quot; and a noise level of ~5.7 &micro;Jy (&micro;Jy) near the field center. The authors have cataloged 200 redshifts for the A370 field. In the reference paper, they construct differential number counts for the central regions (radius &lt; 16&#39;) of this cluster, and find that the faint (S&lt;sub&gt;1.4GHz&lt;/sub&gt; &lt; 3 mJy) counts of A370 are roughly consistent with the highest blank field number counts. Their analyses indicate that the number counts are primarily from field radio galaxies. The authors suggest that the disagreement of their number counts for this cluster with those from a similarly deep observation of A2390 that was also presented in the reference paper can be largely attributed to cosmic variance. The authors observed the A370 cluster field with the VLA in the A configuration for ~42.4hr on-source during 1999 August and September. K. S. Dwarakanath observed A370 in the B configuration for ~18.4hr on-source during 1994 August and September. The field center is located at 02:39:32 -01:35:07 (J2000). This is offset by approximately 5 arcminutes from the cluster center at 02:39:50.5 -01:35:08. The authors also targeted 58 radio sources, in A370, that had no existing optical spectral data using the Hydra fiber spectrograph on the Wisconsin-Indiana-Yale-NOAO (WIYN) telescope (spectral window of ~4500 - 9500 Angstrom). They preferentially targeted optically bright galaxies, obtaining these data in a single two-hour pointing on 2012 January 20. Of the 58 targets, the authors obtained high-confidence redshifts for 36. This table was created by the HEASARC in August 2017 based on &lt;a href="https://cdsarc.cds.unistra.fr/ftp/cats/J/ApJS/202/2/"&gt;CDS Catalog J/ApJS/202/2/&lt;/a&gt; file table2.dat. This file contained 699 entries for sources detected at 1.4 GHz in the A370 field, as well as 524 entries for sources detected at 1.4 GHz in the A2390 field. Only the former are included in this HEASARC table, while the latter can be found in the HEASARC&#39;s &lt;a href="vla23901p4.html"&gt;VLA23901P4&lt;/a&gt; table. This is a service provided by NASA HEASARC .
17018. VLA A2390 Cluster of Galaxies 1.4-GHz Source Catalog
ID:
ivo://nasa.heasarc/vla23901p4
Title:
VLA A2390 Cluster of Galaxies 1.4-GHz Source Catalog
Short Name:
VLA23901P4
Date:
01 Nov 2024
Publisher:
NASA/GSFC HEASARC
Description:
This table contains the 1.4-GHz source catalog for the field of the cluster of galaxies A2390 as observed with the Very Large Array (VLA). This is one of the deepest radio images of a cluster field ever taken. The image covers an area of 34&#39; x 34&#39; with a synthesized beam of ~1.4&quot; and a noise level of ~5.6 &micro;Jy (&micro;Jy) near the field center. In the reference paper, the authors construct differential number counts for the central regions (radius &lt; 16&#39;) of this cluster, and find that the faint (S&lt;sub&gt;1.4GHz&lt;/sub&gt; &lt; 3 mJy) counts of A2390 are roughly consistent with the lowest blank field number counts. Their analyses indicate that the number counts are primarily from field radio galaxies. The authors suggest that the disagreement of their number counts for this cluster with those from a similarly deep observation of A370 that was also presented in the reference paper can be largely attributed to cosmic variance. The authors observed the A2390 cluster field with the VLA in the A configuration for ~31.4hr on-source during 2008 October. The field center is located at 21:53:36 +17:41:52 (J2000). This table was created by the HEASARC in August 2017 based on &lt;a href="https://cdsarc.cds.unistra.fr/ftp/cats/J/ApJS/202/2/"&gt;CDS Catalog J/ApJS/202/2/&lt;/a&gt; file table2.dat. This file contained 699 entries for sources detected at 1.4 GHz in the A370 field, as well as 524 entries for sources detected at 1.4 GHz in the A2390 field. Only the latter are included in this HEASARC table, while the former can be found in the HEASARC&#39;s &lt;a href="vla3701p4.html"&gt;VLA3701P4&lt;/a&gt; table. This is a service provided by NASA HEASARC .
17019. VLA and IR observations of the S235A-B region
ID:
ivo://CDS.VizieR/J/A+A/453/911
Title:
VLA and IR observations of the S235A-B region
Short Name:
J/A+A/453/911
Date:
21 Oct 2021
Publisher:
CDS
Description:
We report on new aspects of the star-forming region S235AB revealed through high-resolution observations at radio and mid-infrared wavelengths. Using the Very Large Array, we carried out sensitive observations of S235AB in the cm continuum (6, 3.6, 1.3, and 0.7) and in the 22GHz water maser line. These were complemented with Spitzer Space Telescope Infrared Array Camera archive data to clarify the correspondence between radio and IR sources. We made also use of newly presented data from the Medicina water maser patrol, started in 1987, to study the variability of the water masers found in the region.
17020. VLA and XMM-EPIX maps of M83
ID:
ivo://CDS.VizieR/J/A+A/640/A109
Title:
VLA and XMM-EPIX maps of M83
Short Name:
J/A+A/640/A109
Date:
21 Oct 2021
Publisher:
CDS
Description:
Reconnection heating has been considered as a potential source of the heating of the interstellar medium. In some galaxies, significant polarised radio emission has been found between the spiral arms. This emission has a form of 'magnetic arms' that resembles the spiral structure of the galaxy. Reconnection effects could convert some of the energy of the turbulent magnetic field into the thermal energy of the surrounding medium, leaving more ordered magnetic fields, as is observed in the magnetic arms. Sensitive radio and X-ray data for the grand-design spiral galaxy M 83 are used for a detailed analysis of the possible interactions of magnetic fields with hot gas, including a search for signatures of gas heating by magnetic reconnection effects. Magnetic field strengths and energies derived from the radio emission are compared with the parameters of the hot gas calculated from the model fits to sensitive X-ray spectra of the hot gas emission. The available X-ray data allowed us to distinguish two thermal components in the halo of M 83. We found slightly higher average temperatures of the hot gas in the interarm regions, which results in higher energies per particle and is accompanied by a decrease in the energy density of the magnetic fields. The observed differences in the energy budget between the spiral arms and the interarm regions suggest that, similar to the case of another spiral galaxy NGC 6946, we may be observing hints for gas heating by magnetic reconnection effects in the interarm regions. These effects, which act more efficiently on the turbulent component of the magnetic field, are expected to be stronger in the spiral arms. However, with the present data it is only possible to trace them in the interarm regions, where the star formation and the resulting turbulence is low.

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